Mounting for picker sticks in looms



Jan. 31, 1950 w. H. BAHAN MOUNTING FOR PICKER STICKS IN LOOMS Filed Nov. 5, 1947 awvem too WILLiAM H. BAHAN Patented Jan. 31, 1950 UNITED STATES PATENT OFFICE MOUNTING FOR PliffFZZTICKS IN LOOMS William H. Bahan, Greenville, S. (1.; Edward F; Bahano administrator of said William H. Bahau,

deceased Application November 3, 1947, Serial No. 183,675

' 1 Claim. (Cl. 139-150) 1 Y This invention relates to an improved parallel motion for the mounting of picker sticks for oscillation. As is well known, on each end of the rocker shaft of a loom is disposed a foot or parallel member on which is mounted for oscil- I lation a shoe and to this shoe is secured the lower end of a picker stick and below the foot or parallel are disposed suitable tension means which are connected to the picker stick for returning the picker stick to the outer end of the shuttle box after a pick has been executed to project the shuttle from the shuttle box.

It is an object of this invention to provide improved means for mounting the lower end of a picker stick which has several advantages over the other types of mountings heretofore employed. Among these advantages are that a much shorter leather strap is used and secondly a torsion spring is employed which is very easily removable and much more accessible than the torsion springs and mechanisms for housing the same as heretofore employed.

Some of the objects of the invention having been stated, other objects will appear as the description proceeds when taken in connection with the accompanying drawings, in which Figure 1 is a side elevation of a parallel motion for supporting a picker stick;

Figure 2 is an elevation looking from along the line 22 in Figure l Figure 3 is a vertical sectional view taken substantially along the line 33 in Figure 1;

Figure 4 is an isometric view looking at the far side of the lower central portion of Figure 1;

Figure 5 is an isometric view of the reverse from that shown in Figure 4.

Referring more specifically to the drawings, the numeral it indicates an end of a rocker shaft on which is suitably secured by any suitable means, such as a screw H, a foot or parallel member l2, the upper end of this parallel member having an uprising rib l3 projecting upwardly therefrom which is adapted to penetrate a suitable slot M in a shoe member I5. The shoe member has downturned portions I1 and l8 on each side thereof which are adapted to loosely fit on each of the vertical sides of the parallel or foot member [2. The shoe 5 is adapted to have secured thereto by any suitable means such as a bolt 20, a picker stick 2|. If desired, in some forms of mountings, there is provided an adjusting wedge 23 with a screw 24 for holding it in adjusted position, but this feature is not a part of my invention.

The bolt 20 also penetrates and holds in posi-tion a metallic member 26 which fits against the outer edge of the picker stick 2|. On each side thereof it has i-nturned portions 28 which fit on each side of the picker stick 2 The lower end of the metallic member 26 is penetrated by a bolt 30 which also penetrates a leather strap 3| and fitting on the outside of the leather strap is a plate member 32 having at each edge thereof fiat portions 34 adapted to fit on each side of the leather strap 3| and on each side of the strap iron member 26.

The parallel member or foot portion l2 has projecting outwardly and downwardly therefrom a portion 35 which has mounted in the lower end thereof a screw 36. This screw 36 is threadably mounted in one end of a drum 31 which has a hole 42 extending all the way therethrough and is threaded at each end thereof, one end to receive the screw 36 and at its other end is threaded to receive a screw 38.

One end 39 of this drum 31 is restricted as to diameter and is rotatably mounted in a hub or bearing portion 40 integral with a member 4|. The member 4| has a hole therethrough which is penetrated by the end 39 of the drum 3'! in which the screw 38 is threadably imbedded in the left-hand end of the hole 42 as viewed in Figure 3.

The restricted portion 39 which extends through the bearing or hub portion 40 on member 4| is of slightly greater length than the hole 45 in the hub portion 40 on member 4| and a washer 41 fits against the end of this restricted portion 39 and therefore it prevents tightening of screw 38 from binding the cylinder 31 against rotation. The member 4| has an inwardly projecting portion which is slotted as at 5| and it has a shield portion 52 on the lower half thereof which is rounded as at 53 and over which one end of a torsion spring 54 is adapted to be secured, the other end of the torsion spring 54 being turned inwardly as at 55 (Figure 3) and fitting into a hole in the drum 31.

In the slot 5| is adapted to be secured a bolt which penetrates the other end of the strap 3| and also penetrates a suitable washer 62 which has downturned portions 63 fitting on each edge of the strap 3|.

The bearing portion 40 has a suitable hole 65 therein through which lubricant may be applied to the bearing portion 39 of the drum 31.

It is thus seen that I have provided an improved tension device for the lower end of picker sticks in which the tension can be easily adjusted and easily replaced in case of breakage.

In the drawings and specification there has been set forth a preferred embodiment of the invention, and although specific terms are employed, they are used in a generic and descriptive sense only, and not for purposes of limitation, the scope of the invention being defined in the claim.

I claim:

In a loom having a parallel and a shoe mounted on the parallel, said shoe having means for securing a picker stick therein, a metallic member secured to the lower end of the picker stick and extending around the lower end thereof, a flexible leather strap secured to the lower end of the metallic member, said parallel having an outwardly and downwardly projecting portion and a drum having a bore therethrough and one end being adapted to abut the downwardly projecting portion and a screw penetrating the downwardly projecting portion and threadably imbedded in one end of the drum to hold the same in fixed position, a torsion spring disposed around the drum and having one end secured to the drum; the other end of the drum having a restricted bearing portion and an oscillatable mem- 4 her mounted on the bearing portion, said oscillatable member having a hub portion adapted to oscillatably fit over the bearing portion of the drum and said oscillatable member having integral therewith a shield disposed in spaced relation to the hub and having an outwardly projecting lip over which the other end of the torsion spring may be secured, the oscillatable member having a slot therein remote from the lip and a bolt mounted in said slot and penetrating the other end of said flexible strap for securing the same in position.

WILLIAM H. BAHAN.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 47,517 Cody May 2, 1865 142,592 Stearns Sept. 9, 1873 1,524,738 Langlois et al Feb. 3, 1925 1,587,632 Davis June 8, 1926 25 2,234,860 Davis Mar. 11, 1941 

